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71 Cards in this Set
- Front
- Back
acous/o
audi/o |
hearing
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aer/o
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air or gas
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aur/i
ot/o |
ear
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cerumin/o
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wax
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salping/o
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eustachian tube or uterine tube
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tympan/o
myring/o |
eardrum
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-acusis
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hearing condition
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external ear
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outer structures of the ear that collect sound
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pinna
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auricle (little ear)
projected part of the external ear (pinna = feather) |
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external or auditory meatus or canal
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external passage for sounds is collected from the pinna to the tympanum
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cerumen
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a waxy substance secreted by glands located throughout the external canal
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middle ear
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structures in the middle of the ear that vibrate sound from the tympanic membrane to the inner ear
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tympanic membrane (TM)
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eardrum; drum-like structure that receives sound collected in the external auditory canal and amplifies it through the middle ear
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malleus
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hammer; first of the three auditory ossicles of the middle ear
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incus
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anvil; secondof the three auditory ossicles of the middle ear
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stapes
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stirrup; last of the three auditory ossicles of the middle ear
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eustachian tube
auditory tube |
tube connecting the middle ear to the pharynx (throat)
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oval window
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membrane that covers the opening between the middle ear and inner ear
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inner ear
labyrinth |
intricate, fluid-filled, intercommunicating bony and membranous passages that function in hearing by relaying sound waves to auditory nerve fibers on a path to the brain for interpretation; also sense body movement and position to maintain balance and equilibrium
(labyrinth = maze) |
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cochlea
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coiled tubular structure of the inner ear that contains the organ of Corti
(cochlea = snail) |
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perilymph
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fluid that fills the bony labyrinth of the inner ear
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endolymph
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fluid within the membraneous labyrinth of the inner ear
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organ of Corti
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structure located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
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vestibule
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middle part of the inner ear, in front of the semicircular canals and behind the cochlea, that contains the utricle and the saccule; functions to provide tbody balance and equilibrium
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utricle
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the larger of two sacs within the membranous labyrinth of the vestibule in the inner ear
(uter = leather bag) |
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saccule
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the smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear
(sacculus = small bag) |
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semicircular canals
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three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement
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otalgia
otodynia |
earache
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otorrhagia
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bleeding from the ear
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otorrhea
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purulent drainage from the ear
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tinnitus
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a jingling; a ringing or buzzing int he ear
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vertigo
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a turning around; dizziness
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otitis externa
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inflammation of the external auditory meatus (canal)
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cerumen impaction
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excessive buildup of wax in the ear that often reduces hearing acuity; especially in elder persons
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myringitis
tympanitis |
inflammation of the eardrum
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otitis media
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inflammation of the middle ear
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aerotitis media
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inflammation of the middle ear from changes in atmospheric pressure; often occurs with frequent air travel
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eustachian obstruction
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blockage of the eustachian tube, usually as a result of infection, as in otitis media
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osclerosis
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hardening of the bony tissue int he ear
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acoustic neuroma
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benign tumor on the auditory nerve (8th cranial nerve) that causes vertigo, tinnitus, and hearing loss
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labyrinthitis
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inflammation of the labyrinth (inner ear)
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Meniere disease
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disorder of the inner ear resulting from an excessive buildup of endolymphatic fluid, causing episodes of vertigo, tinnitus, nausea, vomiting, and hearing loss; one or both ears can be affected, and attacks vary in both frequency and intensity (named after Prosper Meniere, the French physician who first described the condition)
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deafness
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general term for partial or complete loss of hearing
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conductive hearing loss
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hearing impairment caused by interference with sound or vibratory energy in the external canal, middle ear, or ossicles
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sensorineural hearing loss
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hearing impairment caused by lesions or dysfunction of the cochlea or auditory nerve
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mixed hearing loss
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combination of sensorineural and conductive hearing loss
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presbyacusis
presbycusis |
hearing impairment in old age
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audiometry
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process of measuring hearing
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audiometer
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instrument to measure hearing
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audiogram
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record of hearing measurement
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audiologist
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health professional who specializes in the study of hearing impairments
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auditory acuity testing
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physical assessment of hearing; useful in differentiating between conductive and sensorineural hearing loss
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tuning fork
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a two-pronged fork-like instrument that vibrates when struck; used to test hearing, especially bone conduction
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brainstem auditory evoked potential (BAEP)
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electrodiagnostic testing that uses computerized equipment to measure involuntary responses to sound within the auditory nervous system; commonly used to assess hearing in newborns
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otoscopy
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use of an otoscope to examine the external auditory canal and tympanic membrane
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pneumatic otoscopy
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otoscopic observation of the tympanic membrane as air is released into the external auditory meatus; immobility indicates the presence of middle ear effusion (fluid buildup), as occurs as a result of otitis media
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tympanometry
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measurement of the compliance and mobility (conductibility) of the tympanic membrane and ossicles of the middle ear by monitoring the response to external airflow pressures
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microsurgery
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surgery with the use of a microscope used on delicate tissue, such as the ear
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myringotomy
tympanostomy |
incision into the eardrum, most often for insertion of a small polyethylene (PE) tube to keep the canal open and prevent fluid buildup, such as occurs in otitis media
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otoplasty
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surgical repair of the external ears
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stapedectomy
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excision of the stapes to correct otosclerosis
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tympanoplasty
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vein graft of a scarred tympanic membrane to improve sound conduction
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auditory prosthesis
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any internal or external device that improves or substitutes for natural healing
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hearing aid
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an external amplifying device designed to improve hearing by more effective collection of sound into the ear
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cochlear implant
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an electronic device implanted in the cochlea that provides sound perception to patients with severe or profound sensorineural hearing loss in both ears
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ear lavage
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irrigation of the external ear canal, often to remove excessive buildup of cerumen
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ear instillation
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introduction of a medicated solution into the external canal usually administered by drop or drops in the affected ears
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antibiotic
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a drug that inhibits the growth of or destroys microorganisms; used to treat diseases caused by bacteria
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antihistamine
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a drug that blocks the effects of histamine
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antiinflammatory
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a drug that reduces inflammation
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decongestant
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a drug that reduces congestion and swelling of membranes, such as those of the nose and eustachian tube in an effection
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